Aerial ventilator



(No Model.)

R. C. DAVIS 8a' R. R. BROWN.

AERIAL VENTILATOR.

No. 445,813. Patented Feb. 17,1891.

we News versus cm, mow-uma, msuwcmu, o, cA

UNITED STAT-Es PATENT OFFICE.

ROBERTO. DAVIS AND RICHMOND R. BROVN, OF COLUMBUS, OHIO.

AERIAL VENTILATOR.

SPECIFICATION forming part of Letters Patent No. 446,813, dated February 1'7, 189 1.

Application filed October 21, 1890. Serial No. 368,782. (No model.)

To all whom it may concern.'

Be it known that we, ROBERT O. DAVIS and RICHMOND R. BROWN, citizens of theU'nited States, residing at Columbus, in the county of Franklin and State of Ohio, have invented a new and useful Aerial Ventilator, of which the following is a specification.

Ourinvention relates to an improvementin a device for drawing pure air from air altitudes, its objects being to supply pure air for ventilatingbuildings, such as dwelling-ho uses, hospitals, or for other purposes; andit consists in certain features of novelty to be hereinafter described, and then particularly pointed out in the claims.

-In the drawings, Figure 1 is an elevation showing the parts of our apparatus, a considerable length of the cable and the air-conduit being broken off. Fig. 2 is an enlarged detail view of the cable and air-conduit, showingthe manner in which they are connected. Fig. 3 is a detail view of the suspending-ring.

A balloon l, attached to cable 4 through the medium of cords 2 and a ring 3, suspended from the cords, is let up into the air to a suitable height-say a thousand feet-by means ofthe cable 4. This cable unwinds from a windlass 5, provided with a shaft 6,journaled in standards or uprights 7 resting on the ground, where they are fixed. 8 is a crank at one end of the windlass for winding up the cable and to permit the gradual ascentof the balloon.

The ring 3 is provided with cross-bars 3,to which the upper end of the cable 4 is securely attached; also, attached securely to the crossbar and depending therefrom is the air-conduit 9. The air conduit consists of a number of tubular sections 9,preferably constructed of tin; but any other suitable material may be adopted, these sections being connected at theircontiguous ends by means of rubber coupling-sleeves l0, which provide flexible joints. At the upper end of the upper tubular section 9 is a funnel 1l. The cable and the air-conduit are loosely connected at suitable distances apart by means of loose connections, such as snap-hooks l2 and eyelets 13, secured to the respective members, thus taking the ratus is in operative position fresh air is drawn through the mouth or funnel ll down through the air-conduit and into the air-pu mp, from which it is forced into pipe 1G to supply pure air where desired.

17 represents a suitable structure, which we designa-te the balloon-house, said structure being provided at top with suitable trap-doors 18, adapted to open automatically when the balloon is lowered through the door and to close automatically when the balloon has passed through. Any suitable construction of tra p-doors maybe employed. This balloonhouse is for the purpose of storing the balloon during windy or stormy weather.

Vhat we claim isl. In the herein-described apparatus, the combination, with a balloon and a cable for holding it, ot' an air-conduit leading fromsaid balloon to the ground, and loose connections between the cable and the air-conduit, substantially as and for the purpose set forth.

2. In the herein-described apparatus, the combination, with a balloon and a cable for holding it, ot' an air-conduit composed of a series of tubular sections provided with exible couplings, and loose connections between each section of the conduit and the cable, substantially as and for the purpose set forth.

3. In the herein-described apparatus, the combination, with a balloon and a cable for holding it, of an air-conduit consisting of a number of flexibly-jointed sections, substantially as and for the purpose set forth.

In testimony that we claim the foregoing as our own we have hereto affixed our sign atures in presence of two witnesses.

ROBERT C. DAVIS. RICHMOND R. BROVN.

lVitnesses: J. S. TURNER, C. O. HUNTER. 

